Add QuickBASIC

[DecimalTurn]

Description

This PR adds QuickBASIC (QB) as a langauge for the .bas extension.

Note that there exists a modern version of QuickBASIC known as QB64 that is still compatible with Classic QB. Since Classic QB and QB64 haven't reached the popularity threshold by their own at the moment, I've kept them combined, but we could separate them in the future if popularity justifies it.

The grammar used is the one for QB64, since it is also compatible with Classic QB.

Regarding heuristics, due to the similarities between FreeBASIC and QuickBASIC, this PR improves FreeBASIC's heuristics as well as adding new rules for QuickBASIC to make sure they are distinguished properly. Note that heuristics for QuickBASIC should always appear after FreeBASIC to work correctly.

• FreeBASIC:

  • The previous rule was improved by adding the pragma keyword.
  • DataType-Pointer declaration
  • Declaration with inverted order (dim as name1 DataType instead of dim name1 as DataType)
  • Return keyword without the presence of GOSUB. The keyword is not unique to FreeBASIC, but if there is no instances of GOSUB, it's automatically FreeBASIC. Note that a second entry was needed to implement this rule.

• QuickBASIC:

  • See comments in named pattern for more details

Checklist:

• I am adding a new language.
  • The extension of the new language is used in hundreds of repositories on GitHub.com.
    • Search results for each extension:
      • Search query (3k+ results)
  • I have included a real-world usage sample for all extensions added in this PR:
    • Sample source(s):
      • QuickBASIC samples:
        • https://github.com/skeeto/scratch/blob/master/sp4/sponge4.bas (Unlicense license)
        • https://github.com/DualBrain/QuickPakPro/blob/main/QB64/FGETRT.BAS (MIT)
        • https://github.com/DualBrain/QuickPakPro/blob/main/QB64/VLONG.BAS (MIT)
      • Extra BASIC samples (to help classifier):
        • https://github.com/yantrabuddhi/bwbasic3/blob/a062bd4a05fb9459d6e8188c4185638ccad04df7/NBS2/P180.BAS (GPL 2)
  • I have included a syntax highlighting grammar: https://github.com/QB64Official/vscode
  • I have added a color
    • Hex value: #008080
    • Rationale: Based on the green at the bottom of the QuickBASIC IDE.
  • I have updated the heuristics to distinguish my language from others using the same extension.

[DecimalTurn]

Related issue: #3216

[lildude]

See inline comment

[DecimalTurn]

@lildude due to the potential interactions between my 2 other open PRs, would it be OK if I rebase them onto one another such that this one is at the top (while still being separate PRs)? This would be better for testing while this PR is being worked on and it should avoid any conflicts at merge time.

[DecimalTurn]

Due to the similarities between QuickBASIC and FreeBASIC, I'm going to need to improve FreeBASIC's heuristics as well. I have a few improvements ready to be committed, but I should rebase on #7072 since it also make changes for FreeBASIC.

[lildude]

@lildude due to the potential interactions between my 2 other open PRs, would it be OK if I rebase them onto one another such that this one is at the top (while still being separate PRs)? This would be better for testing while this PR is being worked on and it should avoid any conflicts at merge time.

Possibly. I'm not sure how well it'll work with the merge queue that we use.

[lildude]

Possibly. I'm not sure how well it'll work with the merge queue that we use.

Not well it seems. Can you please address the conflicts.

[DecimalTurn]

Not well it seems. Can you please address the conflicts.

Done.